and my main problem is that I can't have more than 100 connections to the
server... I have benchmarked it with dkftpbench and when it arrives to 100
users proftpd stops answering (you can't telnet to the server to port 21,
because it sais conection closed by foreign host). In the moment it
arrives 100... each telnet to server to port 21 gives in the log a :